Shopify Inventory Management Checklist for 2026

Whether you’re a new Shopify merchant or a veteran dealing with the Stocky shutdown, getting your inventory management right in 2026 means following a systematic approach.

This isn’t theory. It’s a practical checklist you can work through this week. Each section builds on the last, from basic hygiene to advanced automation.

Part 1: Inventory hygiene (do this first)

Before any tool or app can help you, your data needs to be clean.

Run a physical count. Shopify’s inventory numbers drift over time. Pick your top 50 SKUs by revenue and verify actual vs. system counts. If variance exceeds 5%, you have a tracking problem.
Consolidate your locations. If you have warehouse, retail, and “default” locations in Shopify, make sure each one reflects reality. Ghost locations create phantom inventory.
Standardize SKU naming. Use a consistent format: CATEGORY-BRAND-STYLE-SIZE-COLOR (e.g., TEE-NK-DRI-L-BLK). This makes reporting, searching, and bulk operations dramatically easier.
Archive dead SKUs. Products with zero sales in 180+ days are costing you attention. Archive them in Shopify (set to draft). You can always bring them back.
Set up inventory tracking for every active product. In Shopify Admin → Products → Edit, ensure “Track quantity” is enabled. Untracked products are invisible to every inventory app.

Part 2: Know your numbers

You can’t manage what you don’t measure. Calculate these for your top 50 SKUs:

Average Daily Usage (ADU). Total units sold ÷ number of selling days. Use last 90 days as baseline.
Supplier lead time. Days between placing an order and receiving goods. Track actuals, not promises. If your supplier says “10 days” but you’ve received in 8, 12, 14, and 11, your effective lead time is 14 (use the worst case for safety).
Carrying cost. Estimate how much it costs to hold one unit for one month (storage + capital + insurance + depreciation). Typically 20–30% of product cost annually.
Stockout frequency. How many times in the last 90 days has each A-item hit zero inventory? If the answer is more than once, your reorder points are too low.
Sell-through rate. Units sold ÷ units received per month. A healthy rate is 60–80% for most categories. Below 40% means you’re over-ordering.

Part 3: Supplier management

Your suppliers are the other half of the inventory equation.

Document every supplier. Name, contact, email, minimum order quantities (MOQs), payment terms, lead times. If this lives in someone’s head instead of a system, you’re one sick day from chaos.
Track supplier reliability. For each order: promised delivery date vs. actual delivery date. Over time, this tells you which suppliers need larger safety buffers.
Negotiate lead times, not just price. A supplier that delivers in 5 days at $10/unit is often more valuable than one at $8/unit with 21-day lead time. The working capital savings alone offset the cost difference.
Set up backup suppliers for your A-items. Single-source dependency is a business risk. Even if the backup is 15% more expensive, knowing they exist means you can survive a primary supplier disruption.

Part 4: Reorder system

Stop reordering based on gut feel.

Calculate reorder points for all A and B items.
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Reorder Point = (Average Daily Sales × Lead Time Days) + Safety Stock
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Safety stock = ADU × Lead Time × variability factor (start with 0.5 for stable products, 1.0 for volatile ones).
Set up purchase order templates. If you reorder the same products monthly, create templates with your standard quantities. One-click PO creation saves hours.
Establish a review cadence:
- A items: review weekly
- B items: review biweekly
- C items: review monthly
Create a replenishment queue. Every Monday, generate a list of products that are within 1.5× lead time of stocking out. This is your weekly priority list.

Part 5: The post-Stocky landscape (2026 specific)

With Stocky shutting down August 31, 2026, you need a migration plan.

Export your Stocky data NOW. Don’t wait for the shutdown date. Export purchase orders, supplier info, and any custom reports. Stocky’s export may become unreliable as the sunset approaches.
Evaluate replacement apps by April. Give yourself 4+ months to migrate, test, and adjust. Rushing a migration in August guarantees problems.
Test with real data. Any app can look good in a demo. Install your top 3 choices on a development store with your actual product catalog. Run them for 2 weeks before committing.
Check Shopify’s native inventory. Shopify has been improving built-in inventory features. Check if the latest updates (demand planning, smart reorder suggestions) cover your needs before paying for an app.
Budget for the transition. Most quality inventory apps cost $20–$50/month. Factor this into your operating costs. The alternative, manual management after Stocky, costs far more in time.

Part 6: Advanced automation

Once the basics are solid, level up:

Implement buffer-based management (DDMRP). Instead of static reorder points, use dynamic green/yellow/red buffers that adjust with demand. This is the gold standard for SMB inventory.
Set up low-stock alerts. Email or Slack notifications when any A-item enters the yellow zone. Don’t wait for red (stockout) to react.
Automate PO generation. For stable, predictable products, auto-generate purchase orders when buffers hit yellow. Review and approve with one click.
Track forecast accuracy. Compare your predictions to actual sales monthly. If accuracy is below 70%, investigate: is it the method, the data, or genuinely unpredictable demand?
Use AI for anomaly detection. AI can spot patterns humans miss: “Your blue variant is cannibalizing your black variant” or “This SKU’s demand correlates with weather changes.” These insights prevent slow-moving overstock.

Part 7: Monthly review

Set a recurring calendar event for the first Monday of each month:

Review A/B/C classification. Products shift categories. Last quarter’s A-item might be this quarter’s C-item.
Update lead times. Recalculate based on last 90 days of actual supplier performance.
Check dead stock. Anything unsold for 120+ days at current velocity should be discounted, bundled, or written off.
Audit carrying costs. Are you paying for warehouse space that holds slow movers? Time to liquidate.
Review app performance. Is your inventory app actually saving you time and money? Track: hours saved on ordering, stockout incidents prevented, overstock reduced.

Quick wins you can do today

If this checklist feels overwhelming, start here:

Run a count on your top 10 products (30 min)
Calculate ADU for those 10 products (15 min)
Set reorder points for those 10 products (15 min)
Document your top 3 suppliers in one place (15 min)

That’s 75 minutes to go from “winging it” to having a basic system for the products that matter most.

What inaction costs you

Quick math: if you have 200 SKUs and experience just one preventable stockout per week averaging $500 in lost sales:

Monthly cost: $2,000
Annual cost: $24,000
Plus: lost customer lifetime value, damaged search rankings, wasted ad spend driving traffic to out-of-stock pages

A $20–50/month inventory app pays for itself if it prevents a single stockout per month.

Need help implementing this checklist? LogiStock automates steps 2 through 6, from forecasting to DDMRP buffers to automated purchase orders. Sync your store in one click and see your first inventory health report in under 10 minutes.